Boat Ob 1 Gaziso: the legend of Soviet shipbuilding

There are few models in the history of the domestic small fleet that cause as much nostalgia and respect as there are in the history of the domestic small fleet. OB 1 GazisoThis project, which originated in Novosibirsk, has become a symbol of the accessibility of water walks for thousands of Soviet citizens. The unique design of the hull, combining the contours of the Gaziso and the dimensions of the Ob, has created a vessel that feels great both on the ripples of small rivers and on the excitement of large reservoirs.

Many owners still operate these boats, passing them down from generation to generation. Aluminum alloyThe hull is made of squirrels that, when properly maintained, are virtually non-corrosive, making them immortal, but like any technology, they require attention, an understanding of the specifics of operation and sometimes a competent upgrade.

In this article, we will discuss in detail what is a hybrid "Ob-Gaziso", why it is so popular among fishermen and tourists, and how to turn the old "iron" into a comfortable boat for family holidays. It is the combination of sharp-knit contours of the nose and increased width of the feed that makes this model unique in its class.

History of occurrence and design features

The design of the boat, popularly known as the Ob-Gaziso, is not a factory modification, but rather the result of folk art and engineering ingenuity. gazisoBut enthusiasts decided to adapt the tested contours to a more spacious body, reminiscent of the classic one. Ob.

The result is a boat that's about 4.5 meters long and over 1.5 meters wide, and this geometry has made it possible to make a lot of stability, so you can stand up and walk around the sides of the boat without fear of a sudden roll, which is critical when you're spinning or putting up a tent camp on the water.

⚠️ Warning: When buying a used version, carefully inspect the welds. Older structures may have been assembled with a violation of technology, which leads to cracks under load.

The body is made from aluminum-manganese alloy sheets, and it's not a random choice: it's very tough and ductile, and unlike dural, it's less prone to deep cracks when it hits ice or rocks, but the weight of the structure is substantial, requiring a reliable trailer or a powerful winch to be launched.

Technical specifications and driving performance

Driving specifications of the boat OB 1 Gaziso It's very much dependent on the quality of the contours and the engine installed, and because of its sharp bow, it effectively cuts through the wave without creating a slap on each crest, and it provides a comfortable speed even in moderate chop, when other flat-bottles are already forced to reset.

The vessel’s capacity allows for comfortable accommodation of 4-5 people with full equipment. Load capacity The structure is 600-700 kg, making it ideal for multi-day expeditions, and the aft often includes knobs to store things that serve as seats at the same time.

High speed handling requires addiction, because of the increased width of the stern, the boat can scour when the steering wheel turns sharply if the speed is not high enough to get on plane. motor-power and the transom position.

Selection and installation of an outboard motor

Motorization is the most pressing issue for Ob-Gaziso, and factory recommendations for prototypes have been for engines up to 30 hp, but modern owners often put more powerful units in the optimal range of 40-50 hp, which allows the loaded boat to be glided with an acceptable fuel consumption.

When you install a motor, it's important to consider the height of the transom, and the standard height of the outboard motor may not be appropriate if the transom has been redesigned or reinforced, often require a transition plate or a lower unit rework. Yamaha, Tohatsu or Mercury They are reliable partners for this boat.

Particular attention should be paid to the mounting of the gas tank. On planing, vibration and shaking can be significant, the tank must be securely fixed, and the fuel line must not be inflected or touch the sharp edges of the metal.

Tuning and improvement for comfortable operation

Modern boat tuning OB 1 Gaziso It turns a Spartan boat into a fully-fledged microboat, and the first thing the owners do is make noise insulation and heat insulation, and aluminum conducts sound and temperature very well, so the bottom and the board are often glued with asphalt-based vibration insulation materials with foil layers.

Then there's the organization of the interior space, and the standard wooden cans are replaced by soft seats with hand-helds, and the bow is often mounted anchor box, and in the stern - a platform for installing a more powerful engine or a second, spare one.

Equally important is the issue of lighting and electrical wiring: Installing the battery in a sealed box, installing running lights to modern standards and installing a sonar with a GPS navigator are becoming mandatory attributes of comfortable fishing.

Comparison with analogues and modifications

To understand the Ob-Gaziso's position among other boats, it's worth comparing its performance with its closest competitors, with both factory and homemade counterparts on the market, each with its own pros and cons.

As you can see from the table, Ob-Gaziso beats Kazanka in terms of payload capacity and body material, which requires no riveting and is less prone to leakage over time. Compared to the Salute, it can be inferior in length, but often wins in price and availability in the secondary market.

⚠️ Attention: Duraluminum boats (like Kazanka) can not be painted with epoxy paints without special primer, as electrochemical corrosion occurs. For Ob-Gaziso (AMG alloy), this is less critical, but the soil is mandatory.

Repair and maintenance of the hull

Despite its strength, the aluminum case requires periodic inspection, and the main problems that owners face are deformation of the seams and dents, and repairing such damage usually does not require complex equipment.

Argon welding is the only reliable way to restore tightness, cold welding or sealants are only temporary and can be dangerous when you go out into large water, and it is important to clean the welding site to pure metal.

Regular maintenance also includes lubrication of moving parts, checking the condition of kilsons and frames. If the boat is kept outside, be sure to check the presence of water in the hold after each rain, as stagnant water accelerates oxidation.